Affiliation: | 1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore), Fax: (+65)?67909061;2. School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore);3. School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 (China);4. School of Chemical and Biomedical Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore);5. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei (Taiwan) |